Hot striking discharge lamps

grummanisergrummaniser Registered User
edited March 2009 in Misc. Discussion
I know that there are various restrictions on striking lamps hot and cold and that various things alter the life of lamps. I would like to read up the real science behind all this and wondered if anyone can point me at some proper engineering/scientific info.

A bit vague I know but eg. WHY do lamps either not strike or not like to be struck when hot?

Thanks people



  • SBlairSBlair Registered User, HES Alumni
    edited March 2009
    When the lamp is hot the pressure inside the lamp is much higher. This requires a much higher voltage to create the arc under these conditions. Typical lamp strike voltage is around 3000V but to hot restrike you need about 30kV.
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